Car of History Clock marble statue
This marble sculpture, created in 1819, is among the oldest works of art in...


The Summerhouse on the Capitol Grounds surrounded by pink azalea flowers.
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Painted portrait of Dr. William Thornton
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Benches in the chapel at Saint Elizabeths Hospital.
The benches of the Capitol Rotunda have also called a few other locations home...

Explore Capitol Hill

Ionic Columns

The sun shining on the Ionic Columns on the Longworth House Office Building.

The Ionic column is typically identified by its capital, which includes large paired spiral scrolls, or volutes. It has the tallest base of the three classic Greek orders. Columns in this style can be found throughout Capitol Hill, including the U.S. Capitol, the Supreme Court Building and the exterior of the Longworth House Office Building.

The Old Senate Chamber, located in the U.S. Capitol Building, is a two-story room modeled after the amphitheaters of antiquity. Eight Ionic columns of variegated marble quarried along the Potomac River support the Chamber’s gallery on the east wall; they were inspired by the columns of the Erechtheion in Athens.

The Supreme Court Building’s grand Court Chamber is a dignified room lighted by side windows behind screens of Ionic columns. The 24 columns are made of Old Convent Quarry Siena marble from Liguria, Italy.

The Longworth House Office Building is one of Washington’s best examples of the Neo-Classical Revival architecture. Its exterior features Ionic columns that support a well-proportioned entablature and are used for the building's five porticoes, the principal one of which is topped by a pediment.